HitResult

Returns the pose of the intersection between a ray and detected real-world geometry. The position is the location in space where the ray intersected the geometry. The orientation is a best effort to face the ray origin, and its exact definition differs depending on the Trackable that was hit.

Plane: X+ is perpendicular to the cast ray and parallel to the plane, Y+ points along the plane normal (up, for Plane.Type.HORIZONTAL_UPWARD_FACING planes), and Z+ is parallel to the plane, pointing roughly toward the ray origin.

Point: Attempt to estimate the normal of the surface centered around the hit test. Surface normal estimation is most likely to succeed on textured surfaces and with camera motion. If Point.getOrientationMode() returns Point.OrientationMode.ESTIMATED_SURFACE_NORMAL, then X+ is perpendicular to the cast ray and parallel to the physical surface centered around the hit test, Y+ points along the estimated surface normal, and Z+ points roughly toward the ray origin. If Point.getOrientationMode() returns Point.OrientationMode.INITIALIZED_TO_IDENTITY, then X+ is perpendicular to the cast ray and points right from the perspective of the ray origin, Y+ points up, and Z+ points roughly toward the ray origin.

If you wish to retain the location of this pose beyond the duration of a single frame, create an Anchor using createAnchor() to save the pose in a physically consistent way.